Photo of the Day: Hundreds of thousands of red ceramic poppies are being placed in the Tower of London's moat as part of an installation called "Blood Swept Lands and Seas of Red." The installation, which opens Tuesday, honors British and Colonial military deaths during WWI.

Amer Ghazzal/REX via Associated Press

Number of the Day: $239 billion—The amount of missing economic output from housing. [The New York Times]

Instagram of the Day:

6 More Stories for Monday:

Mashups of notable architecture. [Fast Co.Design]

Art and architecture come together in the Gordon House, the only Frank Lloyd Wright–designed home in Oregon. [The Seattle Times]

Though Antoni Gaudí's biggest commission, Basílica de la Sagrada Família, remains perpetually unfinished, the campaign to render him as the Catholic Church's first architect-saint isn't letting up. [Gizmodo]

The Aspen Art Museum celebrated the grand opening of its new $45-million building designed by Shigeru Ban, Hon. FAIA, on Saturday. [The Denver Post] Ban is also the subject of a profile in The New Yorker. [The New Yorker]

The new Levi's Stadium in Santa Clara, Calif., held its first sporting event on Saturday, revealing issues that need to be worked out before the start of the San Francisco 49ers season. [San Francisco Chronicle]

A list of real and pretend old houses from film. [Country Living]

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